Add wrapper div around the local video
Add wrapper div around the local video

This will be needed to show a loading icon on the wrapper, as it is not
possible to show it directly on the video.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed